如何做 json 类型的响应？

Question

我有一个集合视图，我必须显示来自后端的图像和视频

SliderList =     (
            {
        SliderID = 1;
        SliderType = 1;
        SliderURL = "http://mca.bananaappscenter.com/Images/SliderImages/MaskGroup2.png";
        Status = 1;
    },
            {
        SliderID = 2;
        SliderType = 1;
        SliderURL = "http://mca.bananaappscenter.com/Images/SliderImages/MaskGroup3.png";
        Status = 1;
    },
            {
        SliderID = 3;
        SliderType = 2;
        SliderURL = "https://www.youtube.com/watch?v=l1yN0KUHgoc";
        Status = 1;
    }
);
}

我确实喜欢这个

 NSMutableDictionary *sampleDict = [ImagesArray objectAtIndex:indexPath.row];
    NSString *imageStr = [[NSString alloc]init];
    imageStr = [sampleDict valueForKey:@"SliderURL"];

    if([imageStr isEqualToString:@"1"] || imageStr == nil)
    {
        cell.addImageView.image = [UIImage imageNamed:@""];
    }
    else
    {
        [cell.addImageView sd_setImageWithURL:[NSURL URLWithString:imageStr]
                                placeholderImage:[UIImage imageNamed:@"default"]];`
    }

上面只有图片来了。如果有任何答案，将不胜感激。提前致谢。

Answer 1

我的问题得到了答案，谢谢每一位回复我的人

 if ([ImagesArray[indexPath.row][@"SliderType"] intValue]==1) {

                NSString *imageStr=ImagesArray[indexPath.row][@"SliderURL"];

                [cell.addImageView sd_setImageWithURL:[NSURL URLWithString:imageStr]
                                         placeholderImage:[UIImage imageNamed:@"default"]];

                }else if ([ImagesArray[indexPath.row][@"SliderType"] intValue]==2) {

                    NSString *imageStr=ImagesArray[indexPath.row][@"SliderURL"];
                    [cell.addImageView sd_setImageWithURL:[NSURL URLWithString:imageStr]
                                         placeholderImage:[UIImage imageNamed:@"VideoButton"]];

                }

Answer 2

据我从问题和您对聊天的扩展讨论中了解到，您在单元格中显示视频和图像时遇到了麻烦。为了显示视频和图像，您需要使用不同的方法。

• 您需要做的第一件事是确定这是视频 URL 还是图像。最好的方法是通过在您的网络服务中添加一个参数来区分这是图像还是视频。
• 一旦退出系统，您将需要一个可以完美加载视频的特殊视图，我使用过 this library，它工作正常。
• 现在在您的单元格中同时添加imageView 和视频播放器视图，并添加一个条件来检查它是否是视频，然后根据返回的信息显示YTPlayerView 或imageView。

然后在这些功能的帮助下，您可以在播放器视图上加载视频：

+ (NSString *)extractYoutubeIdFromLink:(NSString *)link {
    if (link == nil) nil;

    NSString *regexString = @"((?<=(v|V)/)|(?<=be/)|(?<=(\\?|\\&)v=)|(?<=embed/))([\\w-]++)";
    NSRegularExpression *regExp = [NSRegularExpression regularExpressionWithPattern:regexString
                                                                            options:NSRegularExpressionCaseInsensitive
                                                                              error:nil];

    NSArray *array = [regExp matchesInString:link options:0 range:NSMakeRange(0,link.length)];
    if (array.count > 0) {
        NSTextCheckingResult *result = array.firstObject;
        return [link substringWithRange:result.range];
    }
    return nil;
}


//Write this line on your function where you want to load video
[_videoView loadWithVideoId:[SCUtility extractYoutubeIdFromLink:_videoURL]];

Answer 3

我已经在 swift lang 中添加了代码。你可以参考并在那里应用相同的逻辑。它会工作

   let ImagesArray =     [
    [
        "SliderID" : 1,
        "SliderType" : 1,
        "SliderURL" : "http://mca.bananaappscenter.com/Images/SliderImages/MaskGroup2.png",
        "Status" : 1
    ],
    [
        "SliderID" : 2,
        "SliderType" : 1,
        "SliderURL" : "http://mca.bananaappscenter.com/Images/SliderImages/MaskGroup3.png",
        "Status" : 1
    ],
    [
        "SliderID" : 3,
        "SliderType" : 2,
        "SliderURL" : "https://www.youtube.com/watch?v=l1yN0KUHgoc",
        "Status" : 1
    ]
    ]

在tableview cellforrow中你可以这样实现：

    let sampleDict = ImagesArray[indexPath.row] as? NSDictionary
    let SliderURL = sampleDict.valueForkey("SliderURL") as? String
     let SliderType = sampleDict.objectForkey("SliderType") as? NSNumber

    if SliderURL != nil{
        //means url abvl
        if SliderType == 2{
            //video data
            cell.addImageView.image = "set video default thumbnail image "

        }else if SliderType == 1{
            //imagedata
           // cell.addImageView.image = "set ur image "
        }
    }

在目标 C 中

    NSMutableDictionary *sampleDict = [ImagesArray objectAtIndex:indexPath.row];
NSString *imageStr = [[NSString alloc]init];
imageStr = [sampleDict valueForKey:@"SliderURL"];

// NSString * SliderType = [[NSString alloc]init]; // SliderType = [sampleDict valueForKey:@"SliderType"];

 int SliderType = [[sampleDict valueForKey:@"SliderType"] integerValue];
  NSLog(@"%i", SliderType);

if(imageStr != nil)
{

   //if([SliderType isEqualToString:@"2"]
    if [SliderType isEqualToNumber:[NSNumber numberWithInt:2]] {

    cell.addImageView.image = [UIImage imageNamed:@"default"];

  }else if [SliderType isEqualToNumber:[NSNumber numberWithInt:1]] {

  [cell.addImageView sd_setImageWithURL:[NSURL URLWithString:imageStr]
                            placeholderImage:[UIImage imageNamed:@"default"]];`
  }else{
      //nothng
  }
}
else
{
    //SliderURL is nil
}